Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
Challenges contributed by the community members sharing their knowledge and expertise.
A Deployment is stuck with Pods in ContainerCreating state because the required ConfigMap was not created. Fix the issue to make the application accessible.
This exercise tests your ability to safely upgrade a multi-node Kubernetes cluster from version 1.30 to 1.31 following the standard upgrade procedure.
Identify the Secret linked to a ServiceAccount, extract and decode the Base64-encoded token, and verify it contains a valid JWT structure.
Create a multi-container Pod with different user IDs per container while sharing a common group ID at the Pod level for collaborative file access.
